Firebase authentication with backend in android

Question

I plan to use Firebase for authentication and build chat for my Android app. But I have custom backend for rest of the APIs. Can we use both custom backend and firebase authentication at the same time?

Answer 1

Sure thing. You'll need to:

1. Sign the user in with Firebase Authentication in your app .
2. Pass the user's ID token from the app to your server over a secure connection.
3. Decode and validate the ID token.
4. Ensure the user is authorized for the action they're trying to take.